<template>
  <div class="cmt-container">
    <h1>发表评论</h1>
    <hr />
    <textarea placeholder="请输入评论内容（最多120字）" maxlength="120" v-model="msg"></textarea>

    <mt-button type="primary" size="large" @click="postComment">发表评论</mt-button>

    <div class="cmt-list" v-for="(item, i) in comments" :key="item.id">
      <div class="cmt-item">
        <div
          class="cmt-title"
        >第{{i+1}}楼&nbsp;&nbsp;用户：{{ item.id }}&nbsp;&nbsp;发表时间：2020-2-20 12:12:12</div>
        <div class="cmt-body">{{ item.remark }}</div>
        <div class="cmt-body">{{ item.content }}</div>
      </div>
    </div>

    <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
  </div>
</template>

<script>
import { Toast } from "mint-ui";

export default {
  data() {
    return {
      pageIndex: 1,
      comments: [],
      msg: ""
    };
  },

  created() {
    this.getComment();
  },

  methods: {
    getComment() {
      // this.$http.get("api/getcomments" + this.id + "?pageindex=" + this.pageIndex).then(result => {
      //     if(result.body.status === 0){
      //        // this.comment = result.body.message;
      // 获取新数据拼接上老数据
      // this.comment = this.comments.concat(result.body.message)

      //     }else{
      //         Toast("评论数据加载失败！")
      //     }
      // })

      this.$http
        .get("https://api.it120.cc/lisa/shop/goods/category/all")
        .then(result => {
          if (result.body.code === 0) {
            // this.comments = result.body.data;

            this.comments = this.comments.concat(result.body.data);
          } else {
            Toast("加载失败！");
          }
        });
    },

    getMore() {
      this.pageIndex++;
      this.getComment();
    },

    postComment() {
      // 先校验评论内容是否为空
      if (this.msg.trim().length === 0) {
        return Toast("输入不合法！评论内容不能为空。");
      }

      // 发表评论 post():
      // 参数1：请求的URL地址；
      // 参数2：提交给服务器的数据对象 { content: this.msg }；
      // 参数3：定义提交时候，表单中数据的格式( emulateJSON: true )
      this.$http
        .post("https://api.it120.cc/pp/comment/add", {
          content: this.msg.trim()
        })
        .then(function(result) {
          if (result.body.code === 0) {
            var cmt = {
              pid: "匿名用户",
              // add_time: Date.now,
              content: this.msg.trim()
            };
            this.comments.unshift(cmt);
            this.msg = "";
          }
        });
    }
  },

  props: ["id"]
};
</script>

<style lang="scss" scoped>
.cmt-container {
  h1 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }
}

.cmt-list {
  .cmt-item {
    font-size: 13px;
    .cmt-title {
      line-height: 30px;
      background-color: #ccc;
    }
    .cmt-body {
      line-height: 35px;
      text-indent: 2em;
    }
  }
}
</style>